Cheap Flights from Singapore (SINS) to Phnom Penh (PNH)

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Find the cheapest month or even day of the year to fly to Phnom Penh

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Flight deals from Singapore to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from Singapore to Phnom Penh? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Singapore to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Singapore to Phnom Penh flights are currently cheapest in August.

Direct flights from Singapore to Phnom Penh

Singapore to Phnom Penh: Alternative routes

Compare routes from Singapore to Phnom Penh below. You may find an airport to fly into that's cheaper, faster, or easier than Phnom Penh.

Singapore to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight found$237
Cheapest month to flyAugust
Average flight time2 hrs, 4 mins
Most popular airlineSingapore Airlines
Average flights per week130

Finding cheap flights from Singapore to Phnom Penh: Frequently asked questions

The best price we found for a return flight from Singapore to Phnom Penh is $237. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 4 minutes is the average flight time from Singapore to Phnom Penh.
Singapore Airlines, Air New Zealand and Virgin Australia fly direct from Singapore to Phnom Penh.
As of July 2025, there are 260 flights per week flying from Singapore to Phnom Penh.
The cheapest month to fly from Singapore to Phnom Penh is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Singapore to Phnom Penh Airport on Sunday, 17 August 2025.
Yes – the average flight time is 2 hours and 4 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phnom Penh but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Phnom Penh is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Singapore to Phnom Penh International Airport (PNH): What you need to know

  • There are a couple of airports you can start your trip from in Singapore. Check out your options departing from Changi International Airport (SIN) or Seletar Airport (XSP) when reserving your flight from Singapore to Phnom Penh International Airport (PNH).

  • The average duration of a direct Singapore to Phnom Penh International Airport flight is 2 hours 5 minutes.

  • The timezone in Phnom Penh is UTC+7, which is one hour behind Singapore. Phnom Penh International Airport is located in Phnom Penh.

  • The most popular route is from Changi International Airport (SIN) to Phnom Penh International Airport (PNH), with 31 direct weekly services. If you're ready to head out sooner, the earliest flight from SIN to PNH is the 7:40am Singapore Airlines service. If you prefer travelling later, the final departure is at 5:40pm with Singapore Airlines.

  • To ensure you get on your flight from Singapore to PNH, leave enough time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general rule.

  • Travelling during a peak time like school or public holidays? Expect longer lines at security and check-in. To play it safe, arrive up to four hours before international flights and two hours ahead of domestic departures.

Airports in Singapore

Changi International Airport (SIN)

  • Go straight to your destination from Changi International Airport (SIN). Direct flights from Singapore to Phnom Penh International Airport (PNH) can be booked from here.

  • Top airlines that offer direct flights from Singapore to Phnom Penh International Airport out of SIN include:

  • Most travellers prefer to book seats with Singapore Airlines between SIN and PNH.

  • The carrier with the best punctuality score on this route is Emirates. Its services arrive as scheduled 70.49% of the time.

  • SIN is around 21 kilometres from central Singapore. If you're ride-sharing, driving or catching a cab from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're taking public transport, expect the journey time to be around 1 hour.

  • Looking for a convenient hotel close to Changi International Airport? If you're catching an early flight from Singapore to Phnom Penh International Airport, these accommodation options will put you moments from your departure lounge:

  • When it comes to the on-time performance of Changi International Airport, data shows 68.95% of flights complete their journey on time.

Seletar Airport (XSP)

  • You can get to XSP from central Singapore in approximately 25 minutes by car (depending on traffic conditions). The journey on public transport takes roughly 1 hour 25 minutes to cover the 19 kilometres or so.

  • Want to enjoy an extra night away before boarding your Singapore to PNH flight? Unwind in a hotel near Seletar Airport before your holiday officially starts. These stays have a room with your name on it:

About Phnom Penh International Airport (PNH)

  • The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from Singapore to Phnom Penh International Airport. Stay at one of these accommodation options near PNH instead:

  • Travel at your own speed with a Phnom Penh International Airport rental car. Pick up a set of wheels from Europcar, Avis or Budget and venture far and wide through Phnom Penh and beyond.

  • Booking your ride around one week ahead of your Singapore to Phnom Penh International Airport flight can help you secure the lowest rate.

How to find the cheapest flights from Singapore to Phnom Penh International Airport (PNH)

  • At the moment, $146 is the lowest price we've found for a one-way ticket from Singapore to Phnom Penh International Airport. The cheapest price for a return flight is $237. Remember fares can change due to availability at the time of booking.

  • Book one month before your departure date. Research into pricing trends suggests this is the ideal window for finding cheap flights from Singapore to PNH.

  • The best month for scoring cheap Singapore to Phnom Penh International Airport tickets is June. Use the 'Whole month' tool to compare flight prices, then select the dates offering the lowest fares.

  • Never miss a deal on flight tickets from Singapore to PNH by setting up a Price Alert. We'll send you an email or notification through the app when prices go down.

  • Filters make it easier to land a deal on your flight from Singapore to Phnom Penh International Airport. Pick the departure times, carriers and stops that check all your boxes. Then sort the results by 'Cheapest' to bring up the lowest fares right away.

The best time to fly from Singapore to Phnom Penh International Airport (PNH)

  • February is the quietest month for flights from Singapore to Phnom Penh International Airport (PNH), while August is the busiest. Work out the best time to go to Phnom Penh based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your Singapore to PNH flight ticket, consider the kind of weather forecast you're hoping for. March is the warmest month in Phnom Penh, with temperatures ranging from 23ºC (73ºF) to 38ºC (100ºF).

  • Look for cheap tickets from Singapore to Phnom Penh International Airport in January if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 20ºC (68ºF) and 33ºC (91ºF).

More about Phnom Penh

  • Start your Phnom Penh trip right by choosing the ideal place to stay. After booking your flight from Singapore to Phnom Penh International Airport, browse our range of accommodation options including:

  • All great holidays should include a little sightseeing. Royal Palace, Tuol Sleng Genocide Museum and Genocide museum are essential stops on your Phnom Penh itinerary.

Explore more of Cambodia

  • Sihanoukville is just one of the many cities in Cambodia waiting to be discovered once you've taken in the sights of Phnom Penh. Around 177 kilometres away to the south-west, top sights here include Sokha Beach, Ochheuteal Beach and Pantai Ou Chheuteal.

  • Around 241 kilometres north-west of Phnom Penh, Battambang is another essential stop in Cambodia. Experience the best of this destination with a visit to Phare Ponleu Selpak, Battambang Day Tour and Phnom Sampeau.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.